PFOA / PFOS Hazardous Substance Designation Takes Effect

Monday, July 8, 2024 was the effective date of EPA’s May 2024 Ruling designating PFOA and PFOS perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), and their salts and structural isomers, as hazardous substances under the Superfund law (Comprehensive Environmental Response, Compensation, and Liability Act-CERCLA).